Police have said they have a “robust” plan in place ahead of a proposed climate change protest in Parliament Square.

The demonstration on Tuesday – which coincides with the first day Parliament is sitting following the Easter recess – is the latest action by Extinction Rebellion (XR) protesters in the capital.

More than 1,000 people have been arrested during climate change protests which started on Monday April 15. The action has seen Waterloo Bridge and Oxford Circus blocked and a “die in” at the Natural History Museum.

Among the campaigners’ demands is for the Government to declare a climate emergency, and members of XR have previously suggested temporarily ending disruptive tactics to focus on political negotiations as the campaign enters a second week.

Activists are expected to walk from Marble Arch to Parliament Square on Tuesday morning, arriving outside Parliament at around 10am, organisers said.

Scotland Yard has said protesters at Parliament Square must leave a designated area by 11.59pm on Tuesday and warned: “Any organiser or person taking part in the protest failing to comply with these conditions or inciting others not to comply with them will be committing an offence and will be liable to arrest.”

The force added: “A robust policing plan will be in place for the demonstration.”

Meanwhile, Swedish schoolgirl Greta Thunberg, who has inspired international youth climate strikes, has invited party leaders to a meeting in the House of Commons.